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水肥一体化是将灌溉与施肥相结合的一项综合技术,具有省肥、省水、省工、环保、高产、高效的突出优点,目前生产型日光温室的水肥一体化灌溉施肥和灌溉作业,多数依靠人工经验完成,灌溉的及时性、科学性及智控化程度不高。该研究应用STM32嵌入式系统,实时采集埋入土壤中的上、中、下3个深度的湿度传感器的数据,根据不同作物预定的施肥、灌溉策略,自动控制完成温室水肥一体化灌溉作业。该系统同时具有远程监控功能,采用全球移动通信(global system for mobile,GSM)模块给用户提供远距离短消息服务,用户不仅可以通过短信对温室灌溉、光照、通风的远程智能监测,同时可远程控制系统作业的启停,以此实现温室环境的自动化管理,达到远程施肥与节水灌溉的目的。
Integrated water and fertilizer is a combination of irrigation and fertilization of a comprehensive technology, with provincial fertilizer, water, labor, environmental protection, high yield and efficiency of the outstanding advantages of the current production greenhouse greenhouse irrigation and fertilizer irrigation and irrigation operations, Most rely on human experience to complete irrigation, timely, scientific and intellectual control is not high. The study uses STM32 embedded system to collect the data of three depth sensors embedded in the soil in real time. According to the predetermined fertilization and irrigation strategies of different crops, the integrated irrigation of water and fertilizer in greenhouse can be accomplished automatically. The system also has the function of remote monitoring at the same time. It adopts global system for mobile (GSM) module to provide users with long-distance short message service. Users can not only remote intelligent monitoring of greenhouse irrigation, lighting and ventilation through SMS, Control system operation start and stop, in order to achieve the automatic management of the greenhouse environment, to achieve the purpose of remote fertilization and water-saving irrigation.